-**apitrace** will advertise and intercept these GL extensions independently of
-the GL implementation. So all you have to do is to use these extensions when
-available.
+* [`GL_KHR_debug`](http://www.opengl.org/registry/specs/KHR/debug.txt)
+
+* [`GL_ARB_debug_output`](http://www.opengl.org/registry/specs/ARB/debug_output.txt)
+
+* [`GL_AMD_debug_output`](http://www.opengl.org/registry/specs/AMD/debug_output.txt)
+
+* [`GL_GREMEDY_string_marker`](http://www.opengl.org/registry/specs/GREMEDY/string_marker.txt)
+
+* [`GL_GREMEDY_frame_terminator`](http://www.opengl.org/registry/specs/GREMEDY/frame_terminator.txt)
+
+**apitrace** will advertise and intercept these OpenGL extensions regardless
+of whether the OpenGL implementation supports them or not. So all you have
+to do is to use these extensions when available, and you can be sure they
+will be available when tracing inside **apitrace**.